Heel-applying apparatus.



J. E. PERRAULT & H. 6. ELLIS.

HEEL APPLYING APPARATUS. APPLICATION FILED MAY 27, I916.

Patented J mm 5, 1917.

JOSEPH E. PERRAULT, OF BELMONT, AND HOWARD G. ELLIS, OF WATERTOWN, MASSA- GHUSETTS.

HEEL-APPLYING APPARATUS.

Specification of Letters Patent.

Patented June 5, 1917.

Application filed May 27, 1916. Serial No. 100,339.

To all whom it may concern:

Be it known that we, J OSEPH E. PERRAULT and HOWARD Gr. ELLIS, citizens of the United States, residing, respectively, at Belmont and Watertown, Massachusetts, have invented certain new and useful Improvements in Heel-Applying Apparatus, of which the following is a specification.

Our present invention relates to improvements in means for enabling the convenient, effective and rapid application of rubber heels to boots and shoes of that character in which the union of the parts is effected by the subsequent vulcanization of the foot wear. Such heels are usually of what is known as pneumatic type, or in other words such a heel as has a hollow air space or spaces for producing a pneumatic cushion efi'ect. Such heels are pressed against the heel seat of the otherwise built up or assembled article of foot wear prior to its vulcanization, the heel being caused to remain in position upon the heel seat, until it is firmly united thereto, by the natural adhesive character of the rubber compound.

The invention includes the novel features of construction and arrangement and combination of the parts hereinafter described and particularly defined by the appended claims.

An embodiment of our invention is illustrated in the accompanying drawings in which Figure 1 is a side elevation of said apparatus, and l 5 Figs. 2 and 3 are respectively a plan and a transverse section of the means which supports the heel while it is being applied.

Referring by reference-characters to this drawing, A designates a heel retaining plate or member having an opening therethrough provided with flared walls corresponding to the flare of the heel, this plate forming a retaining. member for positioning the heel upon the heel carrier. This plate A, or heel retainer, is yieldingly supported upon the carrier by means of spring pins B at the four corners thereof, which spring pins are in turn supported from the carrier plate C. By having the plate or heel retaining element A yieldingly supported at its four corners, contact is insured with the heel at all points with the shoe before the full or final pressure is applied. The plate or retaining member A is detachably connected to the carrier by means of projections cl,

cl, engaging the lower ends of vertical slots a arranged centrally of the side walls of the retaining plate, and these projections and the lower ends of the slots being correspondinglyYorihded to permit any rocking movement which may be necessary on a horizontal axis while at the same time depression of any portion of the plate or the entire plate is permitted by reason of the slots eX- tending vertically to the upper surface of the plate. To permit the plate or retainer A to be removed and replaced by one having a heel receiving opening of a different size or shape, the projection d is carried by an arm D which is normally pressed to engagement position by a spring D. To allow for variations in the longitudinal construction of the shoe in applying the final pressure, the carrier plate 0 is pivotally supported upon the pressure applying device by means of pivot pins 0, which pass through the side flanges E of the pressure plate or member E. This pressure plate is designed to be forced upwardly to force the heel against the heel seat of the shoe, which is shown in position in dotted lines in Fig. 1, upward movement of the shoe being prevented by the last engaging slide F having a part 7 at its lower end to engage the slot with which the lasts are usually provided.

This slide F is capable of being raised to release the shoe and of being lowered into last holding position and held there by means hereinafter more particularly described. The plate or member E is removably supported upon a rocking arm or lever J pivoted at J conveniently by means of providing said lever with pins j designed to enter openings 0 in the member E and said rocking arm J is connected by an adjustable pitman H with one arm G of a bell crank lever pivoted at G to the base of the machine, the other arm G being adapted to serve as a treadle. The arm G and pitman H constitute a toggle joint which is normally broken by the pull of a spring 0 which tends to pull arm G of the bell crank lever to the right, Fig. 1, and thus lower the arm J. Pressure on the treadle arm G moves the arm G to the left against the tension of the spring, straightening the toggle and forcing the arm J and the heel carried thereby up against the heel seat of the shoe with a requisite pressure to firmly ap ;as indicated at H, tending to force said parts in opposite direction as shown, such telescoping movement being limited by a pin and slot connection.

For breaking the toggle joint after the heel 'has been pressed forja suflicient 'length of time against the heel seat, a'lever K is provided which may be conveniently pivoted to the arm J at one side thereof, so as to be in convenient reach of the operator, this lever being connected'by a rod K with the pawl 'L so that on the rocking of the lever K the pawl L is withdrawn fromrengagement with the projection g and the toggle joint broken by the spring 0, as pre viously referred to. y I r At the same time it is desirable to have the last engaging slide moved upward automatically to disengage the last and permit re moval of the last and shoe. to be readily accomplished, a counterweight P is provided, moving in a suitable channel or guide in the supporting post or standard- Q, which may be made hollow for this pur pose, this counterweight being connected by a flexible element such as a wire rope, or the like, P passing over suitable guide pulleys and connected with the slide. When the slide is lowered into last engaging position by means ofv the handle portion F, it is held in such depressed position by a springpressed dog N engaging ratchet teeth formed on the slide. A rock shaft R carries a projection or dog 1' designedrto bear against a tail piecern formed on the dog and swing its engaging end out of engagement with the ratchet teeth. This rock shaft R is provided with an arm '14 which is connected by suitable means, such as a rod or rods'S with one arm of the bell crank lever T, the other arm of which is in the path of a push rod M having a head M which is designed to be struck by the arm G when drawn to the right by the spring 0. This action of the. arm G on the push rod rocks the bell crank T, and through the connections described disengages the dog N from the ratchet teeth,

allowing the weight to move the slide upward-ly.

Having thus described" our invention what we clalm 1s:

1 In a heel applying. apparatus, a last en-.

gaging device, a pressure applying plate havingupwardly projecting portions, a carrier plate having upstanding projections To enable this pivoted to said portions, a heel retaining device, and yieldable supports on said carrier for supporting the corners of said retaini'ng device. 7 V

2. In a heel applying apparatus, -a last engaging'd'evice, a pressure applying ele-' ment, a carrying plate pivotally connected with said pressure ele1nent,'a heel reta ning plate having a heel receiving opening 'comtaining plate.

3. In combination a vertically movable last engaging device, a vertically movable carrier in opposition to said last engaging device, releasable means for locking said last engaging. device against movement, means for moving said carrier toward the last engaging device and means for simultaneously operating the reverse movement of the carrier and releasing the last engaging device.

4. In combination amovable last engag ing device, a carrier: movable toward and from the last engaging device, means for moving. thev carrier toward the last engaging device and locking the same in pressure applying position, releasable means for holding the las'tengaging device in position and means for simultaneously releasing said pressure applying means and said last engaging means.

5. In combination a reciprocating slide bar carrying last engaging means, tension means for moving said: slide bar away from last engaging. position, pawl and ratchet mechanism for holdingsaid slide bar in last engaging positionagainst said tension means, a carrier plate, means for moving said carrier plate toward and from the last engaging means, and means whereby'said pawl and ratchet mechanism is operated torunlock the slide bar simultaneously with the movement of the carrier vplate away from the slidebarh e 7 V 6. In combinationa last engaging device, a fixed support, an arm pivoted from said fixed support, a carrier supported from said arm, a toggle lever for applying pressure to sald arm, means for locking said toggle in,

pressure applying" position, and means for unlocklng sa1d locking means.

7. Incombination a, standard or frame carrying a last engaging device, a rocking arm pivoted; to said standard, a carrier supported from said arm,- a bell crank lever having onearm projectedlaterally to form a 'treadle lever,.a link connecting the other arm of'said bell crankwith said piv- 139 oted arm and forming therewith a toggle joint, a locking device for cooperating With said bell crank lever to hold the same in locking position, and a releasing lever pivoted to said plvoted arm and connected With said locking device.

8. In combination a suitable standard, a vertically movable slide carried thereby, said slide having ratchet teeth thereon, means tending normally to raise said slide, a pivoted dog engaging the ratchet teeth on the slide for locking it in lowered position, last engaging means carried by said slide,

a carrler plate, a manually operated tgggle Washington, D. 0.

joint for moving said carrier plate, a mov- 15 able contact device adapted-to be operated by one member of said toggle joint on the breaking of the toggle, and connections whereby the movement of said contact devlice disengages the locking dog from the s ide.

In testimony whereof, We alfix our signatures in presence of tWo Witnesses.

JOSEPH E. PERRAULT. HOWARD Gr. ELLIS.

Witnesses z I g 

